Pump-operating apparatus.



1.1. SCHILDER.

vPUMP OPERAHNG APPARATUS,

APPLICATION FILED MAY 11| |916.

1,21 1,764, Patented Jan. 9,1917.

2 SHEETS-SHEET l.

IJV'VENTOR,

1.1. SCHILDER.' PUMP OPERATING APPARATUS.

APPLICATION FILED MAYII. 1916.

1,21 1,764. I Patented Jan. 9,1911'.

2 SHEETS-SHEET 2.

ATTORNEY.

JOHN J. sommare-Or FORT WORTH, TEXAS.

hiermee.

To all whom t may concern:

Be it known tha-t I, JOHN J. SOHILDER, citizen of the United States,"v residing at Fort .Worthyin tliecounty of Tarrant and State of TeXas,.have -finvented certain new and useful Improvements in Pump-Operf'fating Apparatus,'of which the following is -a specification. i i. v

yThis invention pertains to new and useful improvements in pump operating appara- In carrying out the invention a mechanism isV provided which involves a iexibleconnec- 4tion attached to one of the reciprocating pumping elements and a pair of flexible yconnections attached to the other reciproeatingpumpingV elementare coiled with the irst'gconnection .about acommon operating member so, that the pair .ofconnections are unwound as the single connectionis Vwound -andvice-versa, whereby the.` pumping elements are reciprocated in opposite directions f andeone is moved in one direction while the other is moved in the opposite direction.

.The flexible connections being wound or coiled on a common operatingmember it is obvious that rby yreversing thereuolution of this member periodicallyfthat the winding l and unwinding of the respective connections is relatively -reversed periodically by suitable mechanism; orfwhen a connection has been lfoundto move itspumping element to the end of its stroke the motion is reversed and the connection unwound, the other-.connections being at the same time wound and viceversa.' fi.;

:fOther features of the invention will be apparent from a perusal of the following specifica'tion and `the invention will be more readily understood by reference to the accompanying drawings, wherein: f f

Figure 1 is a vertical sectional view of the apparatus, Fig. 2 is a transverse sectional view, and Fig. 3 is a plan view.

In the drawings the numeral 1 designates a frame work having upper sills 2 on each side and lower sills 3 thereunder. A transverse guide shaft 4 is journaled on the sills 2 and a similar shaft 5 is journaled immediately thereunder on the sills 3. Under the shafts the pumping elements 6 and 7 respectively are located. A pair of drums or guide spools 8 are mounted on the shaft 5 and spaced apart, while a single spool 9 is mounted on the shaft 4 in intermediate relation to the spools 8. A single eXible con- Specication of Letters Patent.

Appiicatia ied'ivia'y ii, i1` "serial no. 96,745'

PUMP-*OPERATING APPARATUS.

PatentedJ an. 9,1917.

iiection IllOnis-coiled once around the spool 9 .andhas itslower end fastened to the meinber or element `6; while a kpair of flexible connectionsy 11 each coiled once around Vone vof,;the spools 8 have their` lower ends connected to fthe element 7 f l, An actuating or operating shaft 12 is journaled oii-thesills 2 andlias iiXed thereyonacentral .drum 13 `on each side ofwhich fare fastened drums 14. The connection 10 :is coiled Aabout Ithe drum 13 and the connections 11 are coiled in the opposite direc .tion around the drums 14, said connections being arranged so that when the one 10 is wound up the pair 1l are unwound. Conse quentlyjthe lconnections are continuously winding and unwinding as the shaft 12 is `-revolved. a @n each end oftheshaft 12 a gear l5 is-Iixed and meshes with a similar f gear fixed on the adjacent end of theshaft .,4, while a gear 17 fixed on the end of the .shaft meshes. withthe. gear 16. These egearsv are all equal in kdiameter and it is obvious that the gear 15 driving the gear 16V .which in turn drives the gear 17, the shafts .4 and 5 will be oppositely revolved whereby7 the spool 9 will wind while the spools S are funwinding the connection.

Motion being imparted to the shaft 12 and the same revolved inthe direction indicated by the arrow. in Fig. 1 it will be seen that the connection 10 will be wound on the drum 13 and tlie'coiinections 11 unwound from the drums 14whereby` the element 6 will be ele- .vated andthe element 7 lowered. When the drum `13 has wound a certain-length of the .connectionlO the member will have reachv. `ed theupperend of its stroke and the drums 14 will haveunwound enough of the connections 11 to lower the element 7 to the end of its stroke, consequently kto continue the 4oper- :ation the shaft 12 must be reversed so that the drum 13 will start to unwind the connection 10 and the drums 14 to wind the connections 11; whereby the element 6 is lowered Aand the `element 7 elevated. A double acting pump operating apparatus of a simple nature is had and a comparatively long stroke will be produced by this apparatus.

It will be apparent that various forms of well known reversing devices may be employed for driving the shaft 12 and I have illustrated one of such in the drawings, but wish to point out that its details form no part of the invention and that any means for the purpose can be used. The device comprises a shaft 20 journaled on the sills 2 and having fixed on its ends pinions 21 which mesh with and drive the gears 15. On the shaft 20 are three pulleys 22, 23 and 24 respectively the center one of which is fixed on the shaft while the others are loose, the central pulley 23 thus becomes the driving pulley and revolves the shaft 20. A counter shaft 25 is also mounted on the sills 2 and driven from a suitable source. A broad faced pulley 26 is fastened on this shaft and two belts 27 and 28 are driven thereby, the belt 28 being crossed and running on the loose pulley 2A when the straight belt is driving the pulley 23. To Vreverse the shaft 2O the belts are shifted so that the belt 27 is moved on to the pulley 22 and the cross belt 2S on to the pulley 23. For effecting this shift a properly timed mechanism should be employed. In carrying out this feature the pulleys 23 and 22 are connected by means of a ratchet 29 or other means so that when the belt 27 is driving the pulley 23 the latter will drive thepulley 22, but when said belt is shifted on to the pulley 22 and the pulley 23 is being driven by the belt 28,said pulley 23 will not impart motion to or interfere with the revolution of the pulley 22. A clutch 30 is engaged with the pulley 22 and is mounted on a sleeve 31 loosely confined on the shaft 20 and carrying a worm 32. This Worm drives a gear 33 mounted on a shaft 34: supported by cross timbers 35 resting on the sills 3. It is obvious that the gear is constantly driven in the same direction. A supporting frame 38 is mounted on the sills 2 and carries a transverse shifting rod 35 from which belt shifters 36 depend and straddle the belts. A hanger 37 depends from the frame 38 and is also supported on the shaft 3i. Trip pieces 39 and 4l() respectively are pivoted on the hanger relatively at the top and bottom of the gear and in the path of a pin 41 projecting from the side of the gear. The tripping pieces are pivoted to a link ll2 and are arranged so that when the pin Ll1 swings one out of its path said link swings the other into the path 0f said pin. The upper end of the link is pivoted to a bell crank lever 43 which latter is pivoted to the shifting rod 35.` It will be seen that each time a tripping piece is swung the rod 35 will be moved and the belts shifted, this will occur at each half revolution of the gear 33.

What I claim, is:

1. In an apparatus of the class described, the combination with a support and oppositely reciprocating pumping elements, of a flexible connection attached to one of said elements, and a second' flexible connection attached to the other pumping element, a pair of guide shafts each having one of the connections coiled thereabout, an operating shaft, drums mounted on the operating shaft on which the connections are coiled in opposite directions, a train of gears mounted on the shafts so that the guide shafts are revolved in opposite directions, and means for driving the operating shaft including means for intermittently reversing the transmission of motion thereto.

2. In an apparatus of the class described, the combination with a support and oppositely reciprocating pumping elements, of a flexible connection attached to one of said elements, and a second flexible connection attached to the other pumping element, a pair of guide shafts one disposed above the other, spools mounted on the guide shafts each having one ofthe connections coiled thereabout, an operating shaft, drums mounted on the operating shaft on which the connections are coiled in opposite directions, a train of gears mounted on the shafts so that the guide shafts are revolved in opposite directions, and means for driving the operating shaft including means for intermittently reversing the transmission ofmotionthereto.

In testimony whereof I affix my signature.

JOHN J. SOHILDER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

Washinzton, D. C. 

